(7x+4y)-(2x+8y)=

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Solution for (7x+4y)-(2x+8y)= equation:


Simplifying
(7x + 4y) + -1(2x + 8y) = 0

Remove parenthesis around (7x + 4y)
7x + 4y + -1(2x + 8y) = 0
7x + 4y + (2x * -1 + 8y * -1) = 0
7x + 4y + (-2x + -8y) = 0

Reorder the terms:
7x + -2x + 4y + -8y = 0

Combine like terms: 7x + -2x = 5x
5x + 4y + -8y = 0

Combine like terms: 4y + -8y = -4y
5x + -4y = 0

Solving
5x + -4y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '4y' to each side of the equation.
5x + -4y + 4y = 0 + 4y

Combine like terms: -4y + 4y = 0
5x + 0 = 0 + 4y
5x = 0 + 4y
Remove the zero:
5x = 4y

Divide each side by '5'.
x = 0.8y

Simplifying
x = 0.8y

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